iDEN reconfig/shutdown update

short excerpt:"Sprint has taken great strides to de-emphasize iDEN since the last major upgrades to the network in 2008 which allowed it to offer unlimited flat-rate service and proved unexpectedly popular, so much so that it was able to increase ARPU on the network and draw in more customers than expected."

Which seems to say that Nextel/iDEN was not dying of natural causes, rather it was murdered by Sprint ;-)